<?php
if (!defined('sugarEntry') || !sugarEntry) {
    die('Not A Valid Entry Point');
}
/**
 *
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */


/**
 * Provide application specific logic to the session object.
 * @api
 */
class SugarSession
{
    private static $_instance;
    public static $sessionId;

    /**
     * When constructing the session object, be sure to check if the session_id() already exists as is the case of session.auto_start = 1
     *
     */
    public function __construct()
    {
    }

    public function setSessionId($sessionId)
    {
        self::$sessionId = session_id($sessionId);
    }

    public function start()
    {
        $session_id = session_id();
        if (empty($session_id)) {
            session_start();
            self::$sessionId = session_id();
        } else {
            self::$sessionId = $session_id;
        }
    }

    public static function getInstance()
    {
        if (!isset(self::$_instance)) {
            $className = __CLASS__;
            self::$_instance = new $className();
        }

        return self::$_instance;
    }

    public function destroy()
    {
        foreach ($_SESSION as $var => $val) {
            $_SESSION[$var] = null;
        }
        session_destroy();
    }

    public function __clone()
    {
    }

    public function __get($var)
    {
        return (!empty($_SESSION[$var]) ? $_SESSION[$var] : '');
    }

    public function __set($var, $val)
    {
        return ($_SESSION[$var] = $val);
    }

    public function __destruct()
    {
        session_write_close();
    }
}
